Progress against the field
Between Rotterdam 2023 and Rotterdam 2024, Jornt Holwerda and Jos Hermans kept pace with the field.
Over the same races everyone got 3:37 quicker, so 3:40 faster on the clock looks better than it was.
How this is worked out ⓘ
A finish time moves for two reasons: the athlete, and the race — its course, its floor, its day. For each pair of races in a row in one category, we take everyone who raced both and use the middle of how much they moved (the median) as "the race". Whatever is left is the athlete. Doubles are compared only when the same two people raced both, and told as the pair's; relays are left out. A pair with fewer than 15 athletes in common is not shown.
Every race
4 races · 4 events
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Utrecht28 Nov 2025Doubles Open · Mixed1:13:33 PB57/381Beat 85%
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Rotterdam6 Apr 2024Doubles Open · Men1:14:55276/722Beat 62%
↑ 322 days after Rotterdam 2023, with Jos Hermans 0:03 better than the field Why ↓Close ↑
3:40 faster on the clock, and the race was 3:37 faster for everyone. Whatever changed, it changed for all of them.
The fieldCompare these two →3:37 faster This pair3:40 faster -
Amsterdam4 Nov 2023Doubles Open · Men1:11:33 PB116/411Beat 72%
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Rotterdam20 May 2023Doubles Open · Men1:18:35135/249Beat 46%